The realities of the country's moribund business environment since 2011 mean shisha smoking is creeping back into daily life.
A watchdog group accused the Sudanese military of offering aid to the Lord's Resistance Army.
The mass exodus follows fresh tribal conflicts in the restive Darfur region.
Amnesty International has urged Juba to implement a moratorium as over 200 prisoners are on death row.
Armed rebels that South Sudan believes are backed by Sudan opened fire on a U.N. convoy, killing five peacekeepers from India and at least seven civilians.
The promise follows Qatar's drive to strengthen peace efforts brokered by the Gulf nation two years ago.
Group alleges South Sudan provides food and fuel, but not weapons.
An advocacy group says that two years of eyewitness reports, photos, video and satellite imagery present strong evidence for the case.
Saudi media has been calling the immigrants "infiltrators" and warning readers of their supposed links to crime, disease and militancy.
Omar al-Bashir, who has been in power for more than 20 years, says the people of Sudan need "fresh blood and a new impetus to continue their march."
